Dell Networking Optics and Cables Connectivity Guide · 4 Dell Optics and Cables Connectivity Guide...

Dell Optics and Cables Connectivity Guide

Dell Networking Optics and Cables Connectivity Guide

Networking I/O Connectivity Options

March 2016

Saleem Muhammad, Product Management

1 Gigabit Ethernet

(1GbE)

10 Gigabit

Ethernet (10GbE)

40 Gigabit

Ethernet (40GbE)

100 Gigabit Ethernet

(100GbE)

Fibre Channel

Revision Q117-0.1

mailto:[email protected]

Contents

2

Optics and Cables Selection by Use Case- Key factors influencing the decision 3

- Server to switch connectivity 4

- Storage to switch connectivity 5

- Switch to switch connectivity 6

- Optics and cables positioning 7

Quick Reference Guide- Optics connectivity 9

- Cables connectivity 12

Frequently Asked Questions- Types of cables and the concept of lanes 15

Deployment and Technical Guides 17

2 Dell Optics and Cables Connectivity Guide

Optics and cables selection by use caseKey factors* influencing the decision

Dell Optics and Cables Connectivity Guide3

Storage

Server

Switch

Bandwidth• Application load requirements typically drive the 1GbE, 10GbE,

25GbE, 40GbE, or 100GbE decision. Type of traffic can also be

a deciding factor, e.g. DCB requires 10GbE or higher.

Cost• Servers claim the highest share of devices deployed in any data

center. Choosing a lower cost connectivity option results in a

much lower initial deployment cost.

Power• In any high density server deployment, a connectivity option

which consumes lower power results in much lower OpEx.

Distance• Servers are typically connected to a switch over a very short

distance i.e. typically within the same rack or, in some cases,

within the same row.

Distance and flexibility• Servers are typically connected to a switch over a very short

distance, typically within the same rack or row. A SFP+ switch

with DAC and optic connect option will offer a lower latency and

more flexible solution than 10GBaseT. Customers that prefer to

make their own copper cables due to variable distance

requirements will be limited to 1000BaseT and 10GBaseT

options.

Reliability• Typical storage traffic is very sensitive to loss. Even a minor loss of traffic may result in

major impact on application performance.

Qualification• Storage vendor qualification or recommendation plays an important role in this

decision due to reasons such as customer support, peace of mind, etc.

Latency• Any time spent in transition is time taken away from data processing. Reducing

transition time results in much faster application performance. The result may have a

direct impact on customers’ bottom line e.g. faster processing of online orders.

Bandwidth• On server facing ports, servers typically dictate the per port bandwidth requirement.

However, per port bandwidth requirement for the network facing (switch-to-switch)

ports depends on multiple factors including amount of traffic generated by the servers,

oversubscription ratios, fiber limitations, etc.

Distance• An inter-switch or switch to router connection could range from a few inches to tens of

kilometers. Generally, the price of optics increases as the distance increases.

Latency

• The network topology and application traffic profile (East-west, HPC, computer

clusters, etc.) and influence the minimum latency that can be tolerated in the network.

* This is not an exhaustive list of all potential factors influencing a customers decision. The key

factors listed here are more commonly seen as influencing the decision of a customer. However,

there could be a number of other factors, not listed here, which could have an impact on the final

decision.

1

2

3

Optics and cables selection by use caseServer to switch connectivity


Server1

Ba

nd

wid

th

1GbE 10GbE 40GbE 100GbE

Copper Cables (RJ-45)

Optics

Optics


• SFP 1G-T

• SFP SX

Commonly used

Occasionally used

Direct Attach Copper

(DAC) Cables

• SFP+ DAC in

various lengths

• SFP+ SR

Legacy Optics

• XFP CX4

Active Optical Cables (AOC)

Optics


(DAC) Cables

• QSFP+ DAC in various

lengths

• QSFP+ AOC in various

lengths

• QSFP+ SR4

Ho

w o

fte

n d

ep

loye

dM

ore

oft

en

Le

ss o

ften

25GbE


(DAC) Cables

• QSFP28 to SFP28

DAC in various

lengths


(DAC) Cables

• QSFP28 DAC in

various lengths


• QSFP28 AOC in

various lengths

Optics and cables selection by use caseStorage to switch connectivity


Ba

nd

wid

th

FC 10GbE1 40GbE1 100GbE1

Optics

Optics


Commonly used

Occasionally used

Direct Attach Copper (DAC) Cables

• SFP+ DAC in various lengths

• SFP+ SR

Storage2

1GbE1


Optics

• SFP SX

• SFP+ 8Gb, SWL

Ho

w o

fte

n d

ep

loye

dM

ore

oft

en

Le

ss o

ften

25GbE1

Not

commercially

available

Not

commercially

available

Not

commercially

available

1. Represents Ethernet network. In the context of this slide,

this implies Ethernet network for iSCSI storage.

Optics

• SFP+ 16Gb, SWL

Optics and cables selection by use caseSwitch to switch connectivity


Ba

nd

wid

th

FC 10GbE 40GbE 100GbE

Optics



• SFP+ 8Gb, SWL

• SFP+ 8Gb, LWL

Commonly used

Occasionally used

• SFP+ DAC in various lengths

Optics

• SFP+ ER

• SFP+ ZR

• SFP+ DWDM

Ho

w o

fte

n d

ep

loye

d Active Optical Cables (AOC)

Optics


• QSFP+ DAC in various lengths

• QSFP+ AOC in various lengths

• QSFP+ ESR4

• QSFP+ PSM

Switch 3

1GbE

Optics

• SFP SX

• SFP FX

• SFP LX

• SFP ZX

• SFP T

Optics

• SFP+ SR

• SFP+ LR

• SFP+ LRM

Optics

• QSFP28 SR4

• QSFP28 LR4

Direct Attach Copper (DAC)

Cables• QSFP28 DAC in various

lengths

Copper Cables

(RJ-45)

Optics

• QSFP+ SR4

• QSFP+ LR4

• QSFP+ LM4

Mo

re

oft

en

Le

ss o

ften

25GbE

Coming soon

Optics

• SFP+ 16Gb, SWL

• SFP+ 16Gb, LWL

MPO Cables

• MPO Cables in various lengths


• QSFP28 AOC in various

lengths

Optics

• QSFP28 PSM4

7

Optics and Cables PositioningOptics

Distance†

Sp

ee

d

Short (e.g. within DC/building)

Medium(e.g. between DC/buildings)

Long(e.g. across metro)

10

0G

bE

40

Gb

E1

0G

bE

1G

bE

• SFP+ LR

• SFP+ DWDM

• XFP CX4

• XFP SR

• SFP FX

• SFP ZX

• SFP+ 8Gb SWL

• QSFP+ SR4

• QSFP+ LR4

• QSFP+ PSM4-LR

• QSFP28 LR4

Fib

re

Cha

nn

el

• SFP+ 16Gb LWL

• SFP+ 8Gb LWL

50m 150m 250m 550m 1km 2km 10km 100km

• SFP SX • SFP LX• SFP 1G-T

• SFP 1G-T-EN

• SFP+ SR

• SFP+ LRM

• SFP+ ER

• SFP+ ZR

• XFP ER

• XFP LR

• XFP ZR

• XFP DWDM

• QSFP+ ESR4• QSFP+ PSM1

• QSFP+ LM4-MMF

• QSFP+ QSA2

• QSFP28 SR4• QSFP28 LR4-LITE

• QSFP28 CWDM

† Based on maximum supported distance on best grade fiber. See the Quick Reference Guide for additional distances using lower grade fiber

• SFP+ ELWL

• QSFP+ SM4

• QSFP+ ER4

• SFP+ USR

• QSFP+ LM4-SMF

1. With Pigtail

2. Distance varies based on the customers selection of optics

• SFP+ 16Gb SWL

• CXP SR10

Optics support on Dell Networking / ONDell and 3rd party OS

Dell Networking Big Switch Cumulus IP Infusion Pluribus

OS 6 OS 9 OS 10 BCF BMF CumulusOS OcNOS NetVisor

Dell Optics

Supported Yes Yes1 Yes1 Yes1 Yes1

Blocked No No No No No

Support provided by Dell Big Switch / Dell Cumulus / Dell IP Infusion / Dell Pluribus / Dell

3rd Party Optics

Supported No Yes2 Yes2 Yes2 Yes2

Blocked (Note 2) No No No No

Support provided by Customer3 Partner Partner Partner Partner


Notes

1. Not all Dell optics may be supported. Please check with your sales rep for more specific guidance.

2. Please check with your sales rep for more specific guidance.

3. Vendor does not offer any support for this solution.

Quick Reference Guide

99

?


Models IEEE Standard

MSA Receptacle Power Wavelength Distance Fiber Mode

100MbE and 1GbE

SFP-100M-FX 802.3u SFP Duplex LC ≤1.5W 1310nm 2km (OM1, OM2) SMF 11

SFP-1G-T 802.3z SFP RJ-45 ≤1.5W NA 100m Cat5/6 11

SFP-1G-T-EN 802.3z SFP RJ-45 ≤1.5W NA 100m Cat5/6 11

SFP-1G-SX

802.3z SFP Duplex LC ≤1.5W 850nm 200m (FDDI grade) MMF 11

275m (OM1)

550m (OM2, OM3, OM4)

SFP-1G-LX

802.3z SFP Duplex LC ≤1.5W 1310nm 10km SMF 11

550m (FDDI grade, OM1, OM2)

MMF8

SFP-1G-ZX 802.3z SFP Duplex LC ≤1.5W 1550nm 80km SMF 11

10GbE

SFP-10G-SRSFP-10G-SR-12

802.3ae SFP+ Duplex LC ≤1.5W 850nm 26m (FDDI grade) MMF 11

33m (OM1)

82m (OM2)

300m (OM3)

400m (OM4)

SFP-10G-USR802.3ae SFP+ Duplex LC ≤1.5W 850nm 100m (OM3) MMF 11

150m (OM4) MMF 11

SFP-10G-LRM802.3ae SFP+ Duplex LC ≤1.5W 1310nm 220m (FDDI grade, OM1,

OM2, OM3, OM4)MMF 11

SFP-10G-LR 802.3ae SFP+ Duplex LC ≤1.5W 1310nm 10km SMF 11

SFP-10G-ER5 802.3ae SFP+ Duplex LC ≤1.5W 1550nm 40km SMF 11

SFP-10G-W17 through SFP-10G-W612

N/A SFP+ Duplex LC ≤1.5W C-Band, 100GHz 40km SMF 11

SFP-10G-T-DWDM9 802.3-2012 clause 52

SFP+ Duplex LC ≤1.65W C-Band 50GHz 80km SMF 11

SFP-10G-ZR5 SFF-8431SFF-8432

SFP+ Duplex LC ≤1.5W 1550nm 80km SMF 11

Optics / Transceivers Connectivity





10GbEXFP-10G-SR4 XFP-10G-SR4

802.3ae XFP Duplex LC ≤1.5W 850nm 26m (FDDI grade) MMF 11

33m (OM1)

82m (OM2)

300m (OM3)

400m (OM4)

XFP-10G-LR4 802.3ae XFP Duplex LC ≤1.5W 1310nm 10km SMF 11

XFP-10G-ER4, 5 802.3ae XFP Duplex LC ≤1.5W 1550nm 40km SMF 11

XFP-10G-ZR4, 5 802.3ae XFP Duplex LC ≤1.5W 1550nm 80km SMF 11

XFP-10G-W21 through XFP-10G-W604, 2

N/A XFP Duplex LC ≤1.5W C-Band, 100GHz 80km SMF 11

XFP-10G-CX4 802.3ak XFP Duplex LC ≤1.5W 850nm 15m MMF 11

40GbE

QSA-QSFP-SFP+ 802.3ba NA NA ≤1.5W Varies Varies Varies 11

QSFP-40G-LM4

802.3ba QSFP+ Duplex LC ≤3.5W 1310nm 140m (OM3) MMF 11

160m (OM4)

1km SMF 11

QSFP-40G-SR4802.3ba QSFP+ MPO ≤1.5W 850nm 100m (OM3) MMF 11, 14

150m (OM4)

QSFP-40G-ESR4802.3ba QSFP+ MPO ≤1.5W 850nm 300m (OM3) MMF 11, 14

400m (OM4)

QSFP-40G-PSM-1M 802.3ba QSFP+ MPO Pig-tail1 ≤1.5W 1490nm 2km SMF 11



QSFP-40G-PSM4-LR 802.3ba QSFP+ MPO ≤3.5W 1310nm 10km SMF 14

QSFP-40G-LR4 802.3ba QSFP+ Duplex LC ≤3.5W 1310nm 10km SMF 11

QSFP-40G-SM49 802.3ba QSFP+ Duplex LC ≤1.5W 850nm 200m (OM3), 250m (OM4)

MMF 11






QSFP-40G-ER49 802.3ba QSFP+ Duplex LC ≤3.5W 1310nm 40km SMF 11

100GbE

QSFP28-100G-SR4802.3bm QSFP28 MPO ≤3.5W 850nm 70m (OM3) MMF 11

100m (OM4)

QSFP28-100G-LR4 802.3ba QSFP28 Duplex LC ≤4.5W 1310nm 10km SMF 11

QSFP28-100G-LR4-LITE

802.3ba QSFP28 Duplex LC ≤4.0W 1310nm 2km SMF 11

QSFP28-100G-CWDM9 (Note 4) QSFP28 Duplex LC ≤3.5W 1310nm 2km SMF 11

CXP-100G-SR109802.3ba CXP MPO ≤3.5W 850nm 100m (OM3) MMF 11

150m (OM4)

SFP-8GFC-LWL NA SFP+ Duplex LC ≤1.5W 1260nm – 1360nm 10km SMF 11

SFP-8GFC-ELWL NA SFP+ Duplex LC ≤1.5W 1260nm – 1360nm 25km SMF 11

SFP-16GFC-SWL NA SFP+ Duplex LC 0.8W 770nm – 860nm 125m (OM4 MMF 11

SFP-16GFC-LWL NA SFP+ Duplex LC ≤1.5W 1295nm – 1325nm 10km SMF 11





MSA Power Bend Radius Distance Cable Mode

10GbE

DAC-SFP-10G-0.5M 802.3ae (SFI) SFP+ Passive 35mm 0.5m Copper 11

DAC-SFP-10G-1M 802.3ae (SFI) SFP+ Passive 35mm 1m Copper 11

DAC-SFP-10G-2M9 802.3ae (SFI) SFP+ Passive 35mm 2m Copper 11




AOC-SFP-10G-2M9 802.3ae (SFI) SFP+ ≤1.5W 30mm 2m MMF 11





AOC-SFP-10G-15M 802.3ae (SFI) SFP+ ≤1.5W 30mm 15m MMF 11


40GbE

DAC-QSFP-40G-0.5M 802.3ba (CR4) QSFP+ Passive 50mm 0.5m Copper 11

DAC-QSFP-40G-1M 802.3ba (CR4) QSFP+ Passive 50mm 1m Copper 11

DAC-QSFP-40G-2M9 802.3ba (CR4) QSFP+ Passive 50mm 2m Copper 11




AOC-QSFP-40G-10M 802.3ba (XLPPI) QSFP+ ≤1.5W 10m MMF 11

AOC-QSFP-40G-50M 802.3ba (XLPPI) QSFP+ ≤1.5W 50m MMF 11

DAC-QSFP-4SFP-10G-0.5M 802.3ae (SFI) QSFP+ Passive 70mm/35mm 0.5m Copper 14

DAC-QSFP-4SFP-10G-1M 802.3ae (SFI) QSFP+ Passive 70mm/35mm 1m Copper 14

DAC-QSFP-4SFP-10G-2M9 802.3ae (SFI) QSFP+ Passive 70mm/35mm 2m Copper 14



Cables Connectivity



http://www.siemon.com/sis/store/images/products/cca_qsfp+-to-4-sfp+-passive-copper-assemblies_big.jpg


http://www.siemon.com/sis/store/cca_qsfp+passive-copper-assemblies.asp

http://www.siemon.com/sis/store/cca_qsfp+passive-copper-assemblies.asp



40GbE




DAC-QSFP-4RJ45-1G-1M 802.3ae (SFI) QSFP+ Passive 1m Cat5/6 14

AOC-QSFP-4SFP-10G-10M9 802.3ae (SFI) QSFP+ ≤1.5W 10m MMF 14

AOC-QSFP-4SFP-10G-30M9 802.3ae (SFI) QSFP+ ≤1.5W 30m MMF 14

100GbE

DAC-QSFP28-100G-1M 802.3bj (CR4) QSFP28 Passive 1m Copper 11




DAC-Q28-4SFP28-25G-1M 25GE Consortium QSFP28 Passive 1m Copper 14

DAC-QSFP28-4SFP28-25G-2M

25GE Consortium QSFP28 Passive 2m Copper 14

DAC-QSFP28-4SFP28-25G-3M

25GE Consortium QSFP28 Passive 3m Copper 14

AOC-QSFP28-100G-7M 802.3bm (CAUI4) QSFP28 ≤3.5W 7m MMF 11




CBL-MTP24-OM4-5M NA CXP10 NA 5m MMF 11

Cables Connectivity







Variable Speed

CBL-MTP12-OM4-1M NA QSFP+7 NA 1m MMF 11









CBL-MTP12-4LC-OM4-1M NA QSFP+6 NA 1m MMF 14




CBL-MPO12-4LC-SM-5M NA QSFP+6 NA 5m SMF 14

Cables Connectivity



5. For short distances, it is recommended that the user add appropriate value of in-line optical attenuation to avoid exceeding the receiver overload threshold (-1dBm for 10G-ER, and -7dBm for 10G-ZR)

6. Requires QSFP+ optics on one end and SFP+ optics on the other end, which are not included with the cables.

7. Requires QSFP+ optics on both ends, which are not included with the cables.

8. Requires mode conditioning cable.

9. Shipping soon.

10. Requires CXP optics on both ends, which are not included with the cables.

Notes

1. Optics come with attached MPO pigtail cables that are intended to plug into MPO Patch panels at customer site. Specified MPO cable length is different than the distance between two optics on both ends of the connection.

2. Wavelength varies for the optics. Different channels are supported on these optics and every channel provides different wavelength.

3. Follows the specification defined in the PSM4/CWDM4 MSAs.

4. XFP is an older technology and is mostly seen in legacy solutions only

Frequently Asked Questions


Dell Storage Networking I/O Guide17

NEW http://en.community.dell.com/techcenter/networking/w/wiki/

11905.faq-optics-and-cables

Optics and Cables Frequent Asked Questions

Wiki

Deployment and Technical Guides


Deployment & Technical GuidesDetailed guides to help you get connected

Product Focus Document Title TagsZ9500 Dell Networking Cable Management Kit Cable management, 40GbE

S6000, Z9500 Cable Breakout System for Dell Networking Fabric Switches Patch panel, 40GbE

19

Infrastructure


http://en.community.dell.com/techcenter/extras/m/white_papers/20440423

http://en.community.dell.com/techcenter/extras/m/white_papers/20440424

We encourage readers of this publication to provide feedback on the quality and usefulness of this information by sending an email to

- Saleem Muhammad ([email protected])

Feedback


Dell Networking Optics and Cables Connectivity Guide · 4 Dell Optics and Cables Connectivity Guide...

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